Merge PDF Files Online

Combine two or more PDF files into one document for free. Arrange your files in the order you want, merge them, and download your combined PDF. Your selected files are processed in your browser.

Select PDF files to combine

Choose at least two PDF files. Their order below determines the order in your merged document.

0 file(s) selected

How to Merge PDF Files

Select at least two PDF files from your computer or device.
Use the up and down arrows to arrange your files in the order you want.
Click Merge and Download to combine your selected PDFs.
Open the downloaded PDF and check that the pages are in the correct order.

Why Use SmartTools Merge PDF?

Browser processing

PDF merging runs in your browser, without uploading selected files to our server through this tool.

Choose file order

Rearrange files before merging them into a single document.

Free PDF merging

Combine multiple PDFs and download the result to your device.

Frequently Asked Questions

How do I merge PDF files for free?

Select at least two PDF files, arrange their order, and click Merge and Download. The combined document will be downloaded to your device.

Can I change the order of PDF files?

Yes. Use the up and down arrows beside each file before merging. The files are combined in the displayed order.

Are my PDF files uploaded?

This page merges the selected PDFs locally in your browser. The merging code does not upload their contents to our server.

Why will a PDF not merge?

A damaged, unsupported, encrypted, or password-protected PDF may fail to merge. Try an accessible, valid PDF file.

Note: Password-protected or damaged PDFs may not merge. Very large files can use significant browser memory. Keep your original files until you have checked the merged document.